Advances In Atomic, Molecular, and Optical Physics, Vol. 54 - download pdf or read online

By P.R. Berman, C.C. Lin, E. Arimondo (Eds.)

ISBN-10: 0120038544

ISBN-13: 9780120038541

Quantity fifty four of the Advances sequence comprises ten contributions, overlaying a range of topic parts in atomic, molecular and optical physics. the thing via Regal and Jin stories the homes of a Fermi degenerate fuel of chilly potassium atoms within the crossover regime among the Bose-Einstein condensation of molecules and the condensation of fermionic atom pairs. The transition among the 2 areas could be probed by way of various an exterior magnetic box. Sherson, Julsgaard and Polzik discover the style during which mild and atoms could be entangled, with functions to quantum details processing and verbal exchange. They record at the results of contemporary experiments regarding the entanglement of far-off gadgets and quantum reminiscence of sunshine. fresh advancements in chilly Rydberg atom physics are reviewed within the article via Choi, Kaufmann, Cubel-Liebisch, Reinhard, and Raithel. interesting experiments are defined during which chilly, hugely excited atoms ("Rydberg" atoms) and chilly plasmas are generated. proof for a collective excitation of Rydberg subject is usually provided. Griffiin and Pindzola supply an account of non-perturbative quantal tools for electron-atom scattering strategies. incorporated within the dialogue are the R-matrix with pseudo-states technique and the time-dependent close-coupling procedure. an in depth overview of the R-matrix thought of atomic, molecular, and optical strategies is given via Burke, Noble, and Burke. They current a scientific improvement of the R-matrix approach and its purposes to numerous techniques akin to electron-atom scattering, atomic photoionization, electron-molecule scattering, positron-atom scattering, and atomic/molecular multiphoton approaches. Electron impression excitation of rare-gas atoms from either their flooring and metastable states is mentioned within the article by way of Boffard, Jung, Anderson, and Lin. Excitation pass sections measured via the optical procedure are reviewed with emphasis at the actual interpretation by way of digital constitution of the objective atoms. Ozier and Moazzen-Ahmadi discover inner rotation of symmetric best molecules. advancements of recent experimental equipment in response to high-resolution torsional, vibrational, and molecular beam spectroscopy let actual selection of inner limitations for those symmetric molecules. the topic of attosecond and angstrom technological know-how is reviewed by way of Niikura and Corkum. The underlying actual mechanisms permitting one to generate attosecond radiation pulses are defined and the know-how wanted for the education of such pulses is mentioned. LeGouët, Bretenaker, and Lorgeré describe how infrequent earth ions embedded in crystals can be utilized for processing optically carried broadband radio-frequency indications. tools for attaining tens of gigahertz immediate bandwidth with submegahertz solution utilizing such units are analyzed intimately and proven experimentally. ultimately, within the article by way of Illing, Gauthier, and Roy, it's proven that small perturbations utilized to optical platforms can be utilized to suppress or keep an eye on optical chaos, spatio-temporal dynamics, and styles. purposes of those options to communications, laser stabilization, and bettering the sensitivity of low-light optical switches are explored. · foreign specialists · finished articles · New advancements

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6). 5 G of the peak were excluded from the fit. 6 G. When B is tuned very close to the Feshbach resonance peak, we expect the measured a59 to have a maximum value of on the order of 1/kF due to the unitarity limit. This saturation can be seen in the data shown in Fig. 25. A. S. 5 G of the Feshbach resonance peak, one on either side of the resonance, clearly lie below the fit curve. We find that the unitaritylimited point on the attractive interaction side of the resonance (higher B) has an effective scattering length of ∼ 2/kF .

The solid line in Fig. 11 shows a closeup of the multichannel bound state near threshold. Within a few gauss range of the Feshbach h¯ 2 resonance position the result obeys the expectation for a r0 , Eb = ma 2 (where a is determined through Eq. (6)), which is shown by the dashed line in Fig. 11. Farther away there is a clear deviation from quadratic behavior in 1/a. , 2005; Chin, 2005). The range of the van der Waals potential is given by (Gribakin and Flambaum, 1993) 1 (3/4) mC6 r0 = √ 8 (5/4) h¯ 2 1/4 .

By pulsing the magnetic field quickly towards the Feshbach resonance they were able to observe coherent oscillations between atoms and Feshbach molecules in a 85 Rb BEC. We hoped to employ a slightly different approach to creating molecules in which we would ramp the magnetic field fully across the Feshbach resonance. In this section we will present how, using this technique, we were able to efficiently and reversibly create Feshbach molecules from a Fermi gas of atoms. Another of our contributions to the study of Feshbach molecules was a spectroscopic detection technique that firmly 6] EXPERIMENTAL REALIZATION OF BCS-BEC CROSSOVER 43 F IG .

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Advances In Atomic, Molecular, and Optical Physics, Vol. 54 by P.R. Berman, C.C. Lin, E. Arimondo (Eds.)


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